EP2470857A2 - Method and arrangement for determining a combined data record for a masticatory organ to be measured - Google Patents

Method and arrangement for determining a combined data record for a masticatory organ to be measured

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Publication number
EP2470857A2
EP2470857A2 EP10750096A EP10750096A EP2470857A2 EP 2470857 A2 EP2470857 A2 EP 2470857A2 EP 10750096 A EP10750096 A EP 10750096A EP 10750096 A EP10750096 A EP 10750096A EP 2470857 A2 EP2470857 A2 EP 2470857A2
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EP
European Patent Office
Prior art keywords
sensors
holder
sensor
individual
scans
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10750096A
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German (de)
French (fr)
Other versions
EP2470857B1 (en
Inventor
Thomas Ertl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dentsply Sirona Inc
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Degudent GmbH
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Publication date
Application filed by Degudent GmbH filed Critical Degudent GmbH
Publication of EP2470857A2 publication Critical patent/EP2470857A2/en
Application granted granted Critical
Publication of EP2470857B1 publication Critical patent/EP2470857B1/en
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/52—Combining or merging partially overlapping images to an overall image

Definitions

  • the invention relates to a method for determining a total data set of an object to be measured in the form of a chewing organ or a region thereof using individual data records, which are based on individual scans of the object, which are measured with at least one sensor.
  • the invention also relates to a device for scanning a chewing organ or a region thereof by means of a plurality of sensors emanating from a holder.
  • DE-A-10 2006 013 584 discloses a device and a method for measuring components.
  • a plurality of triangulation sensors which are arranged to be movable along a displacement path, can emanate from a traverse.
  • US-B-6,288,382 relates to a confocal scanning system for measuring an object using a pin-hole array.
  • the present invention is based on the object, a method and an arrangement of the type mentioned in such a way that can be avoided accumulating errors.
  • a correction or correction of individual data should be possible. It should also be possible to easily generate a 3D data record that represents the contour of the object very precisely. Furthermore, a simple handling of the device should be given in order to scan a chewing organ or a section of this easily.
  • the invention essentially provides that at least one first sensor of a first device is used to measure overlapping first partial scans of the object or its area, that second partial scans of the object or its area are performed by at least two second sensors arranged in a stationary relationship second device are measured, that from the first partial scans a total data set representing the object or the area is corrected and corrected by means of the second partial scan or the first partial scans are corrected by the second partial scan and calculated from the corrected partial scans a total data set representing the object or the area or, by means of a plurality of third sensors arranged in a stationary relationship in a device, third partial scans are determined, from the individual data sets of which a total data record representing the object or the area is calculated, wherein during the measurement the third sensors can be moved uncorrelated to the object or area.
  • 2D or 3D image data or partial scans are determined as first partial scans according to the first alternative and overlap, whereby either the first partial scans first pass data by means of the second partial scan determined by the second sensors arranged in stationary relation to each other Register (Match) are corrected, or from the first partial scans first a total data set is calculated, which represents the object to be measured or its area, and then to correct the entire data set using the data obtained from the locally related second sensors data. Correcting involves equalizing and aligning. You use the second partial scans to the first Partial scans or their data or to correct the total data set calculated from the first partial scans.
  • the related method can be combined with prior art scanning systems and can be used to correct errors that occur.
  • the sensors used to determine the overall data set are themselves arranged in stationary relation to one another, so that the subregions detected by each sensor have an unambiguous assignment, ie alignment with each other and thus a correction or equalization is not required.
  • a stand-alone scanning system is used, in particular the full requirements of a scanning system with regard to the required scanning depth, the required coverage of the object geometry and the ability to scan objects with an unfavorable aspect ratio are met.
  • At least the second and third sensors have individual scanning optics, which are preferably designed according to the principle of multipoint OCT (optical coherence tomography), multipoint confocal imaging or multipoint confocal, color-dispersive.
  • OCT optical coherence tomography
  • multipoint confocal imaging or multipoint confocal
  • color-dispersive are preferably designed according to the principle of multipoint OCT (optical coherence tomography), multipoint confocal imaging or multipoint confocal, color-dispersive.
  • a CCD, CMOS, InGaAs or PbS sensor is used as the sensor.
  • a miniature camera in the submillimeter range should be used.
  • the invention is characterized by the fact that the optics required for each sensor, such as a miniature camera, can be confocal.
  • At least the second and third sensors each start from a holder, which is optionally covered by a transparent envelope. Irrespective of this, in the holder next to the sensors should be integrated electronics for merging data streams of the sensors and a voltage source. This can consist of a battery with inductive charging.
  • the transmission of data from the holder should preferably be wireless.
  • the preferred field of application of the teaching according to the invention is the area of 3D scanning of a jaw or jaw area. Therefore, the holder should be dimensioned with the emanating from this elements such that at least partial insertion into a mouth of a patient can be done.
  • At least the third sensors should also be arranged on the holder such that at the same time occlusal, vestibular and platinum / lingual regions of at least one region of the chewing organ can be scanned.
  • the invention therefore also relates to a device for scanning a chewing organ or a region thereof by means of a plurality of sensors emanating from a holder and is distinguished by the fact that the sensors emanate from a holder in which an electronic system for combining with the sensors is determined Data as well as a voltage source is integrated.
  • the holder should have a geometry such that a jaw region to be measured is encompassed, that is, at the same time measurable by means of the sensors occlusal, vestibular and platinal or lingual region.
  • the data merged in the electronics are preferably transmitted without contact to an evaluation unit.
  • a Field Programmable Gate Array FPGA
  • FPGA Field Programmable Gate Array
  • sensors of the same type are based on the holder, although sensors of different types can also be used depending on the design of the holder.
  • the sensor is um one of the group CCD, CMOS, InGaAs, PbS sensor, miniature camera in the submillimeter range.
  • the holder Since measurements are made in or on the mouth region, provision is further made for the holder to be provided with a transparent envelope covering at least the sensors. In particular, all elements emanating from the holder are covered by a corresponding envelope.
  • an inertial system can emanate from the holder in order to detect the position relative to the measuring object.
  • Figure 2 shows an overlap area of adjacent single scan areas
  • Figure 3 is a schematic diagram of a scanning system
  • Figure 4 Scan areas when using confocal or
  • Figure 7 Scanning areas. The teaching of the invention will be described using the example of a scanner for dental applications in the mouth of a patient, without this being intended to be a limitation.
  • the individual scanning optics can therefore preferably be designed according to the principles of multipoint OCT, multipoint confocal imaging or multipoint confocal, color-dispersive.
  • the number of individual scanning systems comprising in each case a sensor (preferably CCD or CMOS but also InGaAs, PbS) with optics can vary from 2 to 1000, is preferably between 10 and 100.
  • a sensor preferably CCD or CMOS but also InGaAs, PbS
  • optics can vary from 2 to 1000, is preferably between 10 and 100.
  • the system may include an inertial system for measuring the position relative to the object to be measured.
  • the number of pixels of the individual sensors can be between 100 x 100 and 3000 x 3000.
  • the sensors, the electronics for merging the data streams of the individual scanning systems, a battery with inductive charging capability and preferably a wireless data transmission and optionally an intertial system are integrated in a holder or a carrier.
  • a transparent cover can be pushed over the actual scan system, if wiping disinfection is not sufficient.
  • the data transmission is preferably wireless, but can also be wired.
  • the scanning region preferably consists of an area or a restricted depth range which is smaller than the object depth to be scanned, since in both cases a mechanical displacement of the confocal or interference surface is difficult for the necessary dimensions within the individual scanning systems is.
  • the necessary depth is achieved by taking the measurement while moving the carrier relative to the object.
  • the carrier by approaching the carrier to the object only the parts of the object facing the single scan system are detected. Then the Confocal Interference plane moves to the more distant parts of the object.
  • Correlated motion or stopping of the beam during a measurement is not required. Rather, an uncorrelated movement of the holder to the object is possible, even if a correlated movement or a stop is to be detected by the invention.
  • the individual levels ie the measurement levels, are merged solely through optimized registration (matches) or with the help of additional position data from the optional intertial platform, which can be operated in patient contact with an optionally optional platform.
  • the optional intertial platform which can be operated in patient contact with an optionally optional platform.
  • at least one depth measuring range can be measured simultaneously, so that in the ideal case the entire or at least partial depth range of the object can be detected simultaneously by recording all the individual scanning systems. This facilitates the subsequent registration.
  • the sensor or single scan systems emanating from the fixture can vary between 2 to 1000, but are preferably between 10 and 100.
  • a single-scan system also includes the optics, wherein the optics for each individual sensor can be constructed in a color-dispersive manner according to the principles of multipoint OCT, multipoint confocal imaging or multipoint confocal.
  • the number of pixels per sensor can be between 100 x 100 and 3000 x 3000.
  • Figure 2 shows that the individual scans in Figure 1 partially overlap.
  • FIGS. 1 and 2 also show that the third sensors are arranged in such a way that the individual scans adjoin them completely or adjoin one another without gaps. at least partially in sections, so overlap in their peripheral areas to allow a match.
  • the components are shown in Figure 3, with which the individual scans are determined, which have a fixed relationship to each other.
  • the system comprises 1 ... n sensors of the respective individual scanning systems, a Field Programmable Gate Array (FPGA) - electronics for assembling the data streams of the single scan S systems with the sensors 1 ... n, preferably an intertial system for the provision of any movement data and components for data transfer to a PC for calculating the geometry.
  • the PC can also be used as a user interface. From the schematic diagram it can be seen that the data transmission can be wired or wireless.
  • the single-scan systems with the electronics are based on a common holder 2, which can also be called a carrier (Fig. 4).
  • a common holder 2 which can also be called a carrier (Fig. 4).
  • the individual scanning systems 1 are integrated.
  • a battery 4 and optionally a coil 5 for an inductive charging system for the battery 4 are provided.
  • an intertial system can optionally be arranged in addition to the electronics 3.
  • the corresponding arrangement is geometrically designed with respect to the sensors 1... N or the individual scan systems 1... N such that a jaw region to be measured is partially included in order to measure total single-scan regions, such as These are shown in Figure 1.
  • scan surfaces 1 result as shown in Figure 5. Two are the single-scan systems and the third is the holder.
  • first sensors are used, which are arranged in a first device.
  • individual non-contiguous scan areas 1 that are permanently assigned to one another in a geometrically unambiguous manner are used. These scan areas 1 are measured by means of second sensors, which are arranged in fixed relationship to one another in a second device.
  • the individual scan areas 3 can also be measured with a single sensor of a device.
  • the individual scans 3 which are not in stationary relationship, by registering them, which represents the object or the area to be measured.
  • This total data set is then corrected, taking into account the individual scans or scan areas 1 detected by the stationary-contact sensors 2, so that in particular accumulated errors of the individual scan data, ie the data of the areas 3, can be corrected.
  • the correction of the scan areas 3 by the scan areas 1 and then the calculation of the total data set from the corrected data of the scan areas 3 represents an equivalence to a correction of the total data set calculated from the individual scan 3.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Recording Measured Values (AREA)

Abstract

The invention relates to a method for determining a combined data record for an object to be measured using individual data records based on individual scans of the object, said scans being measured using at least one sensor. In order to avoid accumulating errors and allow individual data to be rectified or corrected, first partial scans of the object are measured using at least one first sensor and are aligned relative to one another and/or corrected using second partial scans performed by at least two second sensors that are stationary relative to one another, and the individual data records for the combined data record are determined from the aligned and/or corrected partial scans.

Description

Verfahren und Anordnung zur Ermittlung eines Gesamtdatensatzes eines zu messenden Kauorgans  Method and arrangement for determining a complete data set of a chewing organ to be measured
Die Erfindung bezieht auf ein Verfahren zur Ermittlung eines Gesamtdatensatzes eines zu messenden Objekts in Form eines Kauorgans oder eines Bereichs von diesem unter Verwendung von Einzeldatensätzen, denen Einzelscans des Objekts zu Grunde liegen, die mit zumindest einem Sensor gemessen werden. Auch nimmt die Erfindung Bezug auf eine Vorrichtung zum Scannen eines Kauorgans oder eines Bereichs von diesem mittels mehrerer von einer Halterung ausgehender Sensoren. The invention relates to a method for determining a total data set of an object to be measured in the form of a chewing organ or a region thereof using individual data records, which are based on individual scans of the object, which are measured with at least one sensor. The invention also relates to a device for scanning a chewing organ or a region thereof by means of a plurality of sensors emanating from a holder.
Um ein Objekt dreidimensional zu messen, ist es bekannt, dieses dreidimensional zu scannen, um aus den Einzeldatensätzen einen Gesamtdatensatz zu gewinnen, der die Form des zu messenden Objektes wiedergibt. Diese Daten sind z. B. in der Zahnpro- thetik erforderlich, um im CAD/CAM- Verfahren Rekonstruktionen herzustellen. In order to measure an object three-dimensionally, it is known to scan it three-dimensionally in order to obtain from the individual data records a complete data record which reproduces the shape of the object to be measured. These data are z. For example, in dental prosthetics it is necessary to produce reconstructions in the CAD / CAM process.
Ein Problem beim 3D-Scannen ohne festen Bezug zwischen einzelnen 3D- Aufnahmen ist der Aufbau eines mit zunehmender Einzelscan-Anzahl akkumulierenden Fehlers beim Registrieren (Zusammenfügen, Matchen) der Einzelscans zu einem Gesamtdatensatz. Zur Verringerung dieses Fehlers können Hilfsteile mit bekannter Geometrie, also Referenzierungen zusammen mit der zu bestimmenden Geometrie gescannt werden. One problem with 3D scanning without a fixed relationship between individual 3D images is the build-up of an error accumulating as the number of individual scan counts increases when registering (merging, matching) the individual scans to a total data set. To reduce this error, auxiliary parts with known geometry, ie referencing together with the geometry to be determined, can be scanned.
Der DE-A-10 2006 013 584 (US-B-7,705,929) sind eine Vorrichtung sowie ein Verfahren zum Vermessen von Bauteilen zu entnehmen. Dabei können von einer Traverse mehrere Triangulationssensoren ausgehen, die entlang eines Verschiebeweges bewegbar angeordnet sind. DE-A-10 2006 013 584 (US Pat. No. 7,705,929) discloses a device and a method for measuring components. In this case, a plurality of triangulation sensors, which are arranged to be movable along a displacement path, can emanate from a traverse.
Die US-B-6,288,382 bezieht sich auf ein konfokales Scansystem, um mit Hilfe eines Pin-Hole-Arrays ein Objekt zu messen. Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, ein Verfahren und eine Anordnung der eingangs genannten Art so weiterzubilden, dass sich akkumulierende Fehler vermeiden lassen. Ein Entzerren bzw. Korrigieren einzelner Daten soll möglich sein. Auch soll auf einfache Weise ein 3D-Datensatz generiert werden können, der die Kontur des Objekts überaus genau repräsentiert. Ferner soll eine einfache Handhabbarkeit der Vorrichtung gegeben sein, um ein Kauorgan bzw. einen Abschnitt von diesem problemlos scannen zu können. US-B-6,288,382 relates to a confocal scanning system for measuring an object using a pin-hole array. The present invention is based on the object, a method and an arrangement of the type mentioned in such a way that can be avoided accumulating errors. A correction or correction of individual data should be possible. It should also be possible to easily generate a 3D data record that represents the contour of the object very precisely. Furthermore, a simple handling of the device should be given in order to scan a chewing organ or a section of this easily.
Zur Lösung der Aufgabe sieht die Erfindung im Wesentlichen vor, dass mittels zumindest eines ersten Sensors eines ersten Gerätes sich überlappende erste Teilscans des Objekts oder dessen Bereichs gemessen werden, dass zweite Teilscans des Objekts oder dessen Bereichs von zumindest zwei in ortsfester Beziehung angeordneten zweiten Sensoren eines zweiten Gerätes gemessen werden, dass aus den ersten Teilscans ein das Objekt oder den Bereich repräsentierender Gesamtdatensatz berechnet und mittels der zweiten Teilscans korrigiert wird oder die ersten Teilscans mittels der zweiten Teilscans korrigiert werden und aus den korrigierten Teilscans ein das Objekt oder den Bereich repräsentierender Gesamtdatensatz berechnet wird, oder dass mittels mehrerer in einem Gerät in ortsfester Beziehung angeordneter dritter Sensoren dritte Teilscans ermittelt werden, aus deren Einzeldatensätzen ein das Objekt oder den Bereich repräsentierender Gesamtdatensatz berechnet wird, wobei während der Messung die dritten Sensoren un- korreliert zu dem Objekt oder dem Bereich bewegt werden können. In order to achieve the object, the invention essentially provides that at least one first sensor of a first device is used to measure overlapping first partial scans of the object or its area, that second partial scans of the object or its area are performed by at least two second sensors arranged in a stationary relationship second device are measured, that from the first partial scans a total data set representing the object or the area is corrected and corrected by means of the second partial scan or the first partial scans are corrected by the second partial scan and calculated from the corrected partial scans a total data set representing the object or the area or, by means of a plurality of third sensors arranged in a stationary relationship in a device, third partial scans are determined, from the individual data sets of which a total data record representing the object or the area is calculated, wherein during the measurement the third sensors can be moved uncorrelated to the object or area.
Aufgrund der erfindungsgemäßen Lehre werden nach der ersten Alternative 2D- oder 3D-Bilddaten bzw. Teilscans als erste Teilscans ermittelt, die sich überlappen, wobei entweder die ersten Teilscans zunächst mittels der von den in ortsfester Beziehung zueinander angeordneten zweiten Sensoren ermittelten zweiten Teilscans also Daten durch Registrieren (Matchen) korrigiert werden, oder aus den ersten Teilscans zunächst ein Gesamtdatensatz berechnet wird, der das zu messende Objekt bzw. dessen Bereich repräsentiert, um sodann den Gesamtdatensatz mittels der von den in ortfester Beziehung stehenden zweiten Sensoren gewonnenen Daten zu korrigieren. Korrigieren umfasst dabei ein Entzerren und Ausrichten. Man benutzt die zweiten Teilscans, um die ersten Teilscans bzw. deren Daten oder den aus den ersten Teilscans berechneten Gesamtdatensatz zu korrigieren. On the basis of the teaching according to the invention, 2D or 3D image data or partial scans are determined as first partial scans according to the first alternative and overlap, whereby either the first partial scans first pass data by means of the second partial scan determined by the second sensors arranged in stationary relation to each other Register (Match) are corrected, or from the first partial scans first a total data set is calculated, which represents the object to be measured or its area, and then to correct the entire data set using the data obtained from the locally related second sensors data. Correcting involves equalizing and aligning. You use the second partial scans to the first Partial scans or their data or to correct the total data set calculated from the first partial scans.
Das diesbezügliche Verfahren kann mit nach dem Stand der Technik bekannten Scan- Systemen kombiniert werden und kann zur Korrektur auftretender Fehler dienen. The related method can be combined with prior art scanning systems and can be used to correct errors that occur.
Nach dem alternativen Lösungsvorschlag werden die zur Ermittlung des Gesamtdatensatzes verwendeten Sensoren selbst in ortsfester Beziehung zueinander angeordnet, so dass die von jedem Sensor erfassten Teilbereiche eine eindeutige Zuordnung, also Ausrichtung zueinander aufweisen und somit eine Korrektur bzw. Entzerrung nicht erforderlich ist. Es wird ein eigenständiges Scansystem benutzt, bei dem insbesondere die vollen Anforderungen an ein Scansystem bezüglich der erforderlichen Scantiefe, der erforderlichen Abdeckung der Objektgeometrie und der Fähigkeit, Objekte mit einem ungünstigen Aspektverhältnis scannen zu können, erfüllt werden. According to the alternative proposed solution, the sensors used to determine the overall data set are themselves arranged in stationary relation to one another, so that the subregions detected by each sensor have an unambiguous assignment, ie alignment with each other and thus a correction or equalization is not required. A stand-alone scanning system is used, in particular the full requirements of a scanning system with regard to the required scanning depth, the required coverage of the object geometry and the ability to scan objects with an unfavorable aspect ratio are met.
Insbesondere ist vorgesehen, dass zumindest die zweiten und dritten Sensoren Einzelscan-Optiken aufweisen, die vorzugsweise nach dem Prinzip Multipunkt OCT (optische Kohärenztomografie), Multipunkt konfokaler Abbildung oder Multipunkt konfokal, farbdispersiv aufgebaut werden.  In particular, it is provided that at least the second and third sensors have individual scanning optics, which are preferably designed according to the principle of multipoint OCT (optical coherence tomography), multipoint confocal imaging or multipoint confocal, color-dispersive.
Bevorzugterweise werden als Sensor ein CCD-, CMOS-, InGaAs- oder PbS-Sensor verwendet. Preferably, a CCD, CMOS, InGaAs or PbS sensor is used as the sensor.
Als Sensor sollte eine Miniaturkamera im Submillimeterbereich verwendet werden. As a sensor, a miniature camera in the submillimeter range should be used.
Des Weiteren zeichnet sich die Erfindung dadurch aus, dass die für jeden Sensor wie Miniaturkamera benötigte Optik konfokal ausgebildet sein kann. Furthermore, the invention is characterized by the fact that the optics required for each sensor, such as a miniature camera, can be confocal.
Zumindest die zweiten und dritten Sensoren gehen jeweils von einer Halterung aus, die gegebenenfalls von einer transparenten Umhüllenden umfasst ist. Unabhängig hiervon sollten in der Halterung neben den Sensoren eine Elektronik zum Zusammenführen von Datenströmen der Sensoren sowie eine Spannungsquelle integriert sein. Diese kann aus einer Batterie mit induktiver Lademöglichkeit bestehen. At least the second and third sensors each start from a holder, which is optionally covered by a transparent envelope. Irrespective of this, in the holder next to the sensors should be integrated electronics for merging data streams of the sensors and a voltage source. This can consist of a battery with inductive charging.
Die Übertragung der Daten von der Halterung sollte vorzugsweise drahtlos erfolgen. The transmission of data from the holder should preferably be wireless.
Bevorzugtes Einsatzgebiet der erfindungsgemäßen Lehre ist der Bereich des 3D- Scannens eines Kiefers bzw. Kieferbereichs. Daher sollte die Halterung mit den von dieser ausgehenden Elementen derart dimensioniert sein, dass ein zumindest teilweises Einführen in einen Mund eines Patienten erfolgen kann. The preferred field of application of the teaching according to the invention is the area of 3D scanning of a jaw or jaw area. Therefore, the holder should be dimensioned with the emanating from this elements such that at least partial insertion into a mouth of a patient can be done.
Zumindest die dritten Sensoren sollten auf der Halterung des Weiteren derart angeordnet sein, dass gleichzeitig okklusaler, vestibulärer und platinaler/lingualer Bereich von zumindest einem Bereich des Kauorgans gescannt werden kann. At least the third sensors should also be arranged on the holder such that at the same time occlusal, vestibular and platinum / lingual regions of at least one region of the chewing organ can be scanned.
Die Erfindung bezieht sich daher auch auf eine Vorrichtung zum Scannen eines Kauorgans oder eines Bereichs von diesem mittels mehrerer von einer Halterung ausgehender Sensoren und zeichnet sich dadurch aus, dass die Sensoren von einer Halterung ausgehen, in der eine Elektronik zum Zusammenführen von mit den Sensoren ermittelten Daten sowie eine Spannungsquelle integriert ist. Die Halterung sollte dabei eine Geometrie derart aufweisen, dass ein zu messender Kieferbereich umfasst wird, also gleichzeitig mittels der Sensoren okklusaler, vestibulärer und platinaler bzw. lingualer Bereich messbar ist. The invention therefore also relates to a device for scanning a chewing organ or a region thereof by means of a plurality of sensors emanating from a holder and is distinguished by the fact that the sensors emanate from a holder in which an electronic system for combining with the sensors is determined Data as well as a voltage source is integrated. The holder should have a geometry such that a jaw region to be measured is encompassed, that is, at the same time measurable by means of the sensors occlusal, vestibular and platinal or lingual region.
Die in der Elektronik zusammengeführten Daten werden vorzugsweise berührungslos an eine Auswerteeinheit übertragen. Als Elektronik ist ein Field-Programmable Gate Array (FPGA) zu bevorzugen. The data merged in the electronics are preferably transmitted without contact to an evaluation unit. As electronics, a Field Programmable Gate Array (FPGA) is to be preferred.
Bevorzugterweise gehen von der Halterung Sensoren gleicher Bauart aus, gleichwenn auch in Abhängigkeit von der Gestaltung der Halterung Sensoren unterschiedlicher Bauart zum Einsatz gelangen können. Insbesondere handelt es sich bei dem Sensor um einen solchen aus der Gruppe CCD-, CMOS-, InGaAs-, PbS-Sensor, Miniaturkamera im Submillimeterbereich. Preferably, sensors of the same type are based on the holder, although sensors of different types can also be used depending on the design of the holder. In particular, the sensor is um one of the group CCD, CMOS, InGaAs, PbS sensor, miniature camera in the submillimeter range.
Da im bzw. am Mundbereich gemessen wird, ist des Weiteren vorgesehen, dass die Halterung mit einer zumindest die Sensoren abdeckenden transparenten Umhüllenden versehen ist. Insbesondere sind sämtliche von der Halterung ausgehenden Elemente von einer entsprechenden Umhüllenden abgedeckt. Since measurements are made in or on the mouth region, provision is further made for the holder to be provided with a transparent envelope covering at least the sensors. In particular, all elements emanating from the holder are covered by a corresponding envelope.
Von der Halterung kann des Weiteren ein Inertialsystem ausgehen, um die Position relativ zu dem messenden Objekt zu erfassen. Furthermore, an inertial system can emanate from the holder in order to detect the position relative to the measuring object.
Weitere Einzelheiten, Vorteile und Merkmale der Erfindung ergeben sich nicht nur aus den Ansprüchen, den diesen zu entnehmenden Merkmalen - für sich und/oder in Kombination-, sondern auch aus der nachfolgenden Beschreibung von der Zeichnung zu entnehmenden bevorzugten Ausführungsbeispielen. For more details, advantages and features of the invention will become apparent not only from the claims, the features to be taken these features - alone and / or in combination, but also from the following description of the drawing to be taken preferred embodiments.
Es zeigen: Show it:
Abbildung 1 zusammengesetzte Einzelscan-Bereiche, Figure 1 composite single scan areas,
Abbildung 2 einen Überlappungsbereich benachbarter Einzelscan-Bereiche, Figure 2 shows an overlap area of adjacent single scan areas,
Abbildung 3 eine Prinzipdarstellung eines Scansystems, Figure 3 is a schematic diagram of a scanning system,
Abbildung 4 Scanflächen bei der Verwendung von konfokalen oder Figure 4 Scan areas when using confocal or
OCT- Einzelscan-Systemen,  OCT single-scan systems,
Abbildung 6 Scanbereiche mit chromatisch dispersiven konfokalen Figure 6 Scan areas with chromatically dispersive confocal
Multipunkt-Messsystemen und  Multipoint measuring systems and
Abbildung 7 Scanbereiche. Die erfindungsgemäße Lehre soll am Beispiel eines Scanners für dentale Anwendungen im Mund eines Patienten beschrieben werden, ohne dass hierdurch eine Einschränkung erfolgen soll. Figure 7 Scanning areas. The teaching of the invention will be described using the example of a scanner for dental applications in the mouth of a patient, without this being intended to be a limitation.
Beim Scannen von semitransparenten Objekten wie Zähnen oder Gewebe, aber auch Keramik etc. haben Verfahren, die keinerlei oder zumindest eine nicht deckende Be- schichtung der zu messenden Geometrie benötigen, klare Vorteile für den Anwender. Daher soll vorzugsweise, aber nicht ausschließlich ein derartiges Verfahren zur Anwendung kommen. When scanning semitransparent objects such as teeth or tissue, but also ceramics, etc., processes that require no or at least a non-opaque coating of the geometry to be measured have clear advantages for the user. Therefore, preferably, but not exclusively, such a method should be used.
Die Einzelscan-Optiken können daher vorzugsweise nach den Prinzipien Multipunkt OCT, Multipunkt konfokale Abbildung oder Multipunkt konfokal, farbdispersiv aufgebaut sein. The individual scanning optics can therefore preferably be designed according to the principles of multipoint OCT, multipoint confocal imaging or multipoint confocal, color-dispersive.
Durch Miniaturkameras mit CMOS-Chips mit Abmessungen im Sub mm-Bereich (z. B. AWAIBA) sind derartige Systeme mittlerweile in den benötigen Abmessungen möglich geworden. By means of miniature cameras with CMOS chips with dimensions in the sub-mm range (eg AWAIBA), such systems have meanwhile become possible in the required dimensions.
Die Anzahl der Einzelscan-Systeme umfassend jeweils einen Sensor (vorzugsweise CCD oder CMOS aber auch InGaAs, PbS) mit Optik kann dabei von 2 bis 1000 variieren, liegt vorzugsweise zwischen 10 bis 100. The number of individual scanning systems comprising in each case a sensor (preferably CCD or CMOS but also InGaAs, PbS) with optics can vary from 2 to 1000, is preferably between 10 and 100.
Das System kann zur Messung der Position relativ zu dem zu messenden Objekt ein Inertialsystem enthalten. The system may include an inertial system for measuring the position relative to the object to be measured.
Die Pixelanzahl der Einzelsensoren kann zwischen 100 x 100 und 3000 x 3000 liegen. The number of pixels of the individual sensors can be between 100 x 100 and 3000 x 3000.
In einer Halterung bzw. einem Träger sind die Sensoren, die Elektronik zum Zusammenführen der Datenströme der Einzelscan-Systeme, eine Batterie mit induktiver Lademöglichkeit und vorzugsweise eine drahtlose Datenübertragung sowie optional ein Intertialsystem integriert. Um hygienischen Anforderungen zu genügen, kann ein transparenter Cover über das eigentliche Scansystem geschoben werden, falls Wischdesinfektion nicht ausreicht. The sensors, the electronics for merging the data streams of the individual scanning systems, a battery with inductive charging capability and preferably a wireless data transmission and optionally an intertial system are integrated in a holder or a carrier. To meet hygienic requirements, a transparent cover can be pushed over the actual scan system, if wiping disinfection is not sufficient.
Die Datenübertragung erfolgt vorzugsweise drahtlos, kann aber auch drahtgebunden erfolgen. The data transmission is preferably wireless, but can also be wired.
Je nach verwendeten Einzelscan-Systemen werden unterschiedliche Scantiefenbereiche abgedeckt. Depending on the individual scan systems used, different scan depth ranges are covered.
Im Falle der rein konfokalen OCT Multipunkt Anordnung besteht der Scanbereich vorzugsweise aus einer Fläche bzw. einem eingeschränkten Tiefenbereich, der kleiner ist als die zu scannende Objekttiefe, da in beiden Fälle eine mechanische Verschiebung der Konfokal- oder Interferenzfläche bei den notwendigen Dimensionen innerhalb der Einzelscansysteme schwierig ist. In the case of the purely confocal OCT multipoint arrangement, the scanning region preferably consists of an area or a restricted depth range which is smaller than the object depth to be scanned, since in both cases a mechanical displacement of the confocal or interference surface is difficult for the necessary dimensions within the individual scanning systems is.
Die notwendige Tiefe wird dadurch erreicht, dass die Messung erfolgt, während der Träger relativ zum Objekt bewegt wird. So werden durch Annäherung des Trägers an das Objekt erst die dem Einzelscan-System zugewandten Teile des Objekts erfasst. Dann wandert die KonfokalVInterferenzebene zu den weiter entfernten Teilen des Objekts. The necessary depth is achieved by taking the measurement while moving the carrier relative to the object. Thus, by approaching the carrier to the object only the parts of the object facing the single scan system are detected. Then the Confocal Interference plane moves to the more distant parts of the object.
Eine korrelierte Bewegung oder ein Anhalten des Trägers während einer Messung ist nicht erforderlich. Vielmehr ist eine unkorrelierte Bewegung der Halterung zu dem Objekt möglich, gleichwenn von der Erfindung auch eine korrelierte Bewegung oder ein Anhalten erfasst werden soll. Correlated motion or stopping of the beam during a measurement is not required. Rather, an uncorrelated movement of the holder to the object is possible, even if a correlated movement or a stop is to be detected by the invention.
Zusammengefügt werden die einzelnen Ebenen, also den Messebenen, allein durch optimierte Registrierung (Matchen) oder auch mit Hilfe zusätzlicher Positionsdaten aus der optionalen Intertialplattform, die zusammen mit einer ebenfalls optionalen Plattform in Patientenkontakt betrieben werden kann. Im Falle der chromatisch dispersiven konfokalen Multipunktanordnung im Einzelscan- System ist zumindest ein Tiefenmessbereich simultan messbar, so dass im Idealfall mit einer Aufnahme aller Einzelscan-Systeme die Geometrie vollständig oder zumindest Teiltiefenbereich des Objekts gleichzeitig erfasst werden können. Hierdurch wird die anschließende Registrierung erleichtert. The individual levels, ie the measurement levels, are merged solely through optimized registration (matches) or with the help of additional position data from the optional intertial platform, which can be operated in patient contact with an optionally optional platform. In the case of the chromatically dispersive confocal multipoint arrangement in the individual scanning system, at least one depth measuring range can be measured simultaneously, so that in the ideal case the entire or at least partial depth range of the object can be detected simultaneously by recording all the individual scanning systems. This facilitates the subsequent registration.
In Abbildung 1 wird prinzipiell die Segmentierung von Einzelscan-Bereichen dargestellt, die aus Einzelscans bestehen, die mittels von einer gemeinsamen Halterung ausgehenden und damit in ortsfester Beziehung zueinander stehender als dritte Sensoren bezeichnete Sensoren gemessen werden. Hierbei handelt es sich insbesondere um Miniaturkameras mit z. B. CMOS-Chips mit Abmessungen im Submillimeterbereich, wie diese von Awaiba angeboten werden. In Figure 1, the segmentation of individual scan areas is shown in principle, consisting of individual scans, which are measured by means of a common holder outgoing and thus stationary in relation to each other standing as a third sensor sensors. These are in particular miniature cameras with z. B. CMOS chips with dimensions in the submillimeter range, as offered by Awaiba.
Die von der Halterung ausgehenden Sensoren oder Einzelscan-Systeme können zwischen 2 bis 1000 variieren, liegen jedoch bevorzugterweise zwischen 10 und 100. The sensor or single scan systems emanating from the fixture can vary between 2 to 1000, but are preferably between 10 and 100.
Ein Einzelscan-System umfasst dabei neben der Sensorfläche wie CCD, CMOS, In- GaAs oder PbS auch die Optik, wobei die Optik für jeden einzelnen Sensor nach den Prinzipien Multipunkt OCT, Multipunkt konfokale Abbildung oder Multipunkt konfokal farbdispersiv aufgebaut sein kann. In addition to the sensor surface such as CCD, CMOS, In GaAs or PbS, a single-scan system also includes the optics, wherein the optics for each individual sensor can be constructed in a color-dispersive manner according to the principles of multipoint OCT, multipoint confocal imaging or multipoint confocal.
Die Anzahl der Pixel pro Sensor kann zwischen 100 x 100 und 3000 x 3000 liegen. The number of pixels per sensor can be between 100 x 100 and 3000 x 3000.
Man erkennt aus der Abbildung 1 des Weiteren, dass z. B. ein Kiefer eines Kauorgans aufgenommen wird, wobei gleichzeitig der okklusale Bereich 1, der vestibuläre Bereich 2 und der platinale oder linguale Bereich 3 abgedeckt ist. It can be seen from Figure 1 further that z. B. a jaw of a chewing organ is taken, at the same time the occlusal area 1, the vestibular area 2 and the platinum or lingual area 3 is covered.
In Abbildung 2 wird verdeutlicht, dass die Einzelscans der Abbildung 1 sich teilweise überlappen. Figure 2 shows that the individual scans in Figure 1 partially overlap.
Aus den Abbildungen 1 und 2 ergibt sich ferner, dass die dritten Sensoren derart angeordnet werden, dass die Einzelscans dieser lückenlos aneinander grenzen oder sich zu- mindest teilweise abschnittsweise, also in ihren Randbereichen überlappen, um ein Matchen zu ermöglichen. FIGS. 1 and 2 also show that the third sensors are arranged in such a way that the individual scans adjoin them completely or adjoin one another without gaps. at least partially in sections, so overlap in their peripheral areas to allow a match.
Rein prinzipiell sind in der Abbildung 3 die Komponenten dargestellt, mit denen die Einzelscans ermittelt werden, die eine ortsfeste Beziehung zueinander aufweisen. Das System umfasst 1 ... n Sensoren der jeweiligen Einzelscan-Systeme, eine Field Pro- grammable Gate Array (FPGA) - Elektronik zum Zusammenfügen der Datenströme der Einzelscan-S Systeme mit den Sensoren 1 ... n , bevorzugterweise ein Intertialsystem zur Bereitstellung von etwaigen Bewegungsdaten sowie Komponenten zur Datenübertragung an einen PC zur Berechnung der Geometrie. Der PC kann auch als User Interface verwendet werden. Aus der Prinzipdarstellung wird erkennbar, dass die Datenübertragung drahtgebunden oder drahtlos erfolgen kann. In principle, the components are shown in Figure 3, with which the individual scans are determined, which have a fixed relationship to each other. The system comprises 1 ... n sensors of the respective individual scanning systems, a Field Programmable Gate Array (FPGA) - electronics for assembling the data streams of the single scan S systems with the sensors 1 ... n, preferably an intertial system for the provision of any movement data and components for data transfer to a PC for calculating the geometry. The PC can also be used as a user interface. From the schematic diagram it can be seen that the data transmission can be wired or wireless.
Die Einzelscan-Systeme mit der Elektronik gehen von einer gemeinsamen Halterung 2 aus, die auch als Träger bezeichnet werden kann (Abb. 4). In der Halterung 2 sind die Einzelscan-Systeme 1 integriert. Ferner ist eine Batterie 4 und gegebenenfalls eine Spule 5 für ein induktives Ladungssystem für die Batterie 4 vorgesehen. Ferner kann optional neben der Elektronik 3 ein Intertialsystem angeordnet werden. Die entsprechende Anordnung ist dabei in Bezug auf die Sensoren 1 ... n bzw. die Einzelscan-Systeme 1 ... n derart geometrisch ausgelegt, dass ein zu messender Kieferbereich teilweise umfasst wird, um folglich Gesamt-Einzelscan-Bereiche zu messen, wie diese der Abbildung 1 zu entnehmen sind. The single-scan systems with the electronics are based on a common holder 2, which can also be called a carrier (Fig. 4). In the holder 2, the individual scanning systems 1 are integrated. Furthermore, a battery 4 and optionally a coil 5 for an inductive charging system for the battery 4 are provided. Furthermore, an intertial system can optionally be arranged in addition to the electronics 3. The corresponding arrangement is geometrically designed with respect to the sensors 1... N or the individual scan systems 1... N such that a jaw region to be measured is partially included in order to measure total single-scan regions, such as These are shown in Figure 1.
Sofern die Einzelscan-Systeme nach dem Prinzip Multipunkt OCT oder Multipunkt konfokaler Abbildung aufgebaut sind, ergeben sich entsprechend der Abbildung 5 Scanflächen 1. Mit 2 sind die Einzelscan-Systeme und mit 3 die Halterung gekennzeichnet. If the individual scan systems are constructed according to the principle of multi-point OCT or multipoint confocal imaging, scan surfaces 1 result as shown in Figure 5. Two are the single-scan systems and the third is the holder.
Im Falle eines chromatisch dispersiven konfokalen Multipunkt-Messsystems für die Einzelmesssysteme, ergibt sich ein Tiefenscan-Bereich 1, wie dieser der Abbildung 6 zu entnehmen ist. Die Einzelscan-Systeme sind wiederum mit 2 und die Halterung bzw. der Träger mit 3 gekennzeichnet. In the case of a chromatically dispersive confocal multi-point measuring system for the individual measurement systems, a depth-scan region 1 results, as in Figure 6 can be found. The individual scanning systems are again marked 2 and the holder or carrier 3.
Nach der erfindungsgemäßen Lehre können auch Einzelscans ohne ortsfeste Zuordnung zueinander zur Ermittlung von Gesamtdaten eines Gesamtdatensatzes benutzt werden. Hierzu gelangen als erste Sensoren bezeichnete Sensoren zum Einsatz, die in einem ersten Gerät angeordnet sind. Um die Einzelscans einander zuzuordnen bzw. einen aus diesen berechneten Gesamtdatensatz zu entzerren bzw. zu korrigieren, werden einzelne fest geometrisch eindeutig einander zugeordnete nicht zusammenhängende Scanbereiche 1 benutzt. Diese Scanbereiche 1 werden mittels zweiter Sensoren gemessen, die in ortsfester Beziehung zueinander in einem zweiten Gerät angeordnet sind. According to the teaching of the invention, it is also possible to use individual scans without stationary association with one another for determining overall data of a complete data record. For this purpose, sensors designated as first sensors are used, which are arranged in a first device. In order to associate the individual scans with one another or to equalize or correct a total data set calculated from these, individual non-contiguous scan areas 1 that are permanently assigned to one another in a geometrically unambiguous manner are used. These scan areas 1 are measured by means of second sensors, which are arranged in fixed relationship to one another in a second device.
Dabei besteht die Möglichkeit, die mit den von den in ortsfester Beziehung stehenden Sensoren erfassten und somit eindeutig einander zugeordneten Scanbereichen 1 (Abb. 7) die von zumindest einem ersten Sensoren ermittelten Scanbereiche 3 zu korrigieren, um sodann einen Gesamtdatensatz zu berechnen. Um den Gesamtdatensatz zu berechnen, müssen sich die Einzelscans 3 untereinander überlappen und einige Einzelscans 3 überlappen die Scanbereiche 1. Mit anderen Worten wird durch Registrieren der Einzelscanbereiche 3 zueinander sowie den Scanbereichen 1 eine Korrektur der Einzelscans 3 ermöglicht. In this case, it is possible to correct the scan areas 1 (FIG. 7) detected by the stationary-contact sensors and thus unambiguously associated with one another, then to calculate an overall data record. In order to calculate the total data set, the individual scans 3 must overlap one another and some individual scans 3 overlap the scan areas 1. In other words, by registering the individual scan areas 3 to one another and the scan areas 1, it is possible to correct the individual scans 3.
Die Einzelscanbereiche 3 können auch mit einem einzigen Sensor eines Geräts gemessen werden. The individual scan areas 3 can also be measured with a single sensor of a device.
Alternativ und bevorzugt besteht die Möglichkeit, zunächst aus den nicht in ortsfester Beziehung stehenden Einzelscans 3 einen Gesamtdatensatz durch Registrieren dieser zu berechnen, der das Objekt bzw. den zu messenden Bereich repräsentiert. Dieser Gesamtdatensatz wird sodann unter Einbeziehung der von den in ortsfester Beziehung stehenden Sensoren 2 erfassten Einzelscans bzw. Scanbereiche 1 korrigiert, so dass insbesondere akkumulierte Fehler der Einzelscandaten, also der Daten der Bereiche 3, korrigiert werden können. Das Korrigieren der Scanbereiche 3 durch die Scanbereiche 1 und sodann das Berechnen des Gesamtdatensatzes aus den korrigierten Daten der Scanbereiche 3 stellt insoweit eine Äquivalenz zu einer Korrektur des aus den Einzelscans 3 berechneten Gesamtdatensatzes dar. Alternatively and preferably, it is possible first to calculate an overall data record from the individual scans 3, which are not in stationary relationship, by registering them, which represents the object or the area to be measured. This total data set is then corrected, taking into account the individual scans or scan areas 1 detected by the stationary-contact sensors 2, so that in particular accumulated errors of the individual scan data, ie the data of the areas 3, can be corrected. The correction of the scan areas 3 by the scan areas 1 and then the calculation of the total data set from the corrected data of the scan areas 3 represents an equivalence to a correction of the total data set calculated from the individual scan 3.
Aufgrund der erfindungsgemäßen Lehre wird folglich ein 3D-Gesamtdatensatz hoher Genauigkeit zur Verfügung gestellt, der den zu messenden Bereich des Kauorgans bzw. des Kiefers 2 repräsentiert. On the basis of the teaching according to the invention, therefore, a 3D overall data record of high accuracy is provided which represents the region of the chewing organ or jaw 2 to be measured.

Claims

Patentansprüche Verfahren und Anordnung zur Ermittlung eines Gesamtdatensatzes eines zu messenden Kauorgans Method and arrangement for determining a total data set of a chewing organ to be measured
1. Verfahren zur Ermittlung eines Gesamtdatensatzes eines zu messenden Objekts, wie Kauorgan oder Bereich eines solchen, unter Verwendung von Einzeldatensätzen, denen Einzelscans des Objekts zu Grunde liegen, die mit zumindest einem Sensor gemessen werden, 1. A method for determining an overall data set of an object to be measured, such as the chewing organ or region thereof, using individual data records which are based on individual scans of the object which are measured with at least one sensor,
dadurch gekennzeichnet,  characterized,
dass mittels zumindest eines ersten Sensors sich überlappende erste Teilscans des Objekts oder dessen Bereichs gemessen werden, dass zweite Teilscans des Objekts oder dessen Bereichs von zumindest zwei in ortsfester Beziehung angeordneten zweiten Sensoren gemessen werden, dass aus den ersten Teilscans ein das Objekt oder den Bereich repräsentierender Gesamtdatensatz berechnet und mittels der zweiten Teilscans korrigiert wird oder die ersten Teilscans mittels der zweiten Teilscans korrigiert werden und aus den korrigierten Teilscans ein das Objekt oder den Bereich repräsentierender Gesamtdatensatz berechnet wird, oder dass mittels mehrerer in ortsfester Beziehung angeordneter dritter Sensoren dritte Teilscans ermittelt werden, aus deren Einzeldatensätzen ein das Objekt oder den Bereich repräsentierender Gesamtdatensatz berechnet wird, wobei während der Messung die dritten Sensoren unkorreliert zu dem Objekt oder dem Bereich bewegt werden können.  in that overlapping first partial scans of the object or its area are measured by means of at least one first sensor, that second partial scans of the object or its area are measured by at least two secondarily arranged second sensors such that the first partial scans represent the object or the area Total data set is calculated and corrected by means of the second partial scan or the first partial scans are corrected by means of the second partial scan and from the corrected partial scans a total data set representing the object or the area is calculated, or third partial scans are determined by means of a plurality of third-dimensionally arranged third sensors, from the individual data sets of which a total data record representing the object or the area is calculated, wherein during the measurement the third sensors can be moved uncorrelated to the object or the area.
2. Verfahren nach Anspruch 1, 2. The method according to claim 1,
dadurch gekennzeichnet,  characterized,
dass zumindest die zweiten und dritten Sensoren Einzelscan-Optiken aufweisen, die nach dem Prinzip Multipunkt OCT (optische Kohärenztomografie), Multi- punkt konfokaler Abbildung oder Multipunkt konfokal, farbdispersiv aufgebaut werden. in that at least the second and third sensors have individual scanning optics which are configured confocal, color-dispersive according to the principle of multipoint OCT (optical coherence tomography), multi-point confocal imaging or multipoint confocal.
3. Verfahren nach Anspruch 1 oder 2, 3. The method according to claim 1 or 2,
dadurch gekennzeichnet,  characterized,
dass als Sensor ein CCD-, CMOS-, InGaAs- oder PbS-Sensor verwendet wird.  that a CCD, CMOS, InGaAs or PbS sensor is used as the sensor.
4. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 4. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass als Sensor eine Miniaturkamera im Submillimeterbereich verwendet wird.  that a miniature camera in the sub-millimeter range is used as the sensor.
5. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 5. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass die Optik des zumindest zweiten und/oder dritten Sensors konfokal ausgebildet wird.  the optics of the at least second and / or third sensor are formed confocally.
6. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 6. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass die zweiten Sensoren zur Bildung einer Einheit mit einer Halterung verbunden werden.  that the second sensors are connected to a holder to form a unit.
7. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 7. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass die dritten Sensoren zur Bildung einer Einheit mit einer Halterung verbunden werden.  in that the third sensors are connected to a holder to form a unit.
8. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 8. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass in der Halterung neben den Sensoren eine Elektronik zum Zusammenführen von Datenströmen der Sensoren sowie eine Spannungsquelle integriert werden. that in the holder in addition to the sensors, an electronics for merging data streams of the sensors and a voltage source can be integrated.
9. Verfahren nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, 9. The method according to at least one of the preceding claims, characterized
dass als Spannungsquelle eine Batterie mit induktiver Lademöglichkeit verwendet wird.  in that a battery with inductive charging capability is used as the voltage source.
10. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 10. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass Übertragung der Daten der von der Halterung ausgehenden Sensoren drahtlos erfolgt.  that transmission of data from the sensor emanating from the holder is wireless.
11. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 11. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass die Halterung mit den Sensoren von einer transparenten Umhüllenden abgedeckt wird.  that the holder with the sensors is covered by a transparent envelope.
12. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 12. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass die Halterung mit den von dieser ausgehenden Elementen derart dimensioniert wird, dass ein zumindest teilweises Einführen in einen Mund eines Patienten erfolgt.  in that the holder is dimensioned with the elements emanating therefrom in such a way that it is at least partially inserted into a mouth of a patient.
13. Verfahren nach zumindest einem der vorhergehenden Ansprüche, 13. The method according to at least one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass zumindest die dritten Sensoren derart auf der Halterung angeordnet werden, dass gleichzeitig okklusaler, vestibulärer und platinaler/lingualer Bereich von zumindest einem Bereich des Kauorsans gescannt werden. in that at least the third sensors are arranged on the holder in such a way that at the same time occlusal, vestibular and platinum / lingual regions are scanned by at least one region of the chewing gum.
14. Verfahren nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, 14. The method according to at least one of the preceding claims, characterized in that
dass die dritten Sensoren derart angeordnet werden, dass die Einzelscans dieser lückenlos aneinander grenzen oder sich zumindest abschnittsweise teilweise abschnittsweise überlappen.  the third sensors are arranged in such a way that the individual scans adjoin them completely without gaps or at least partially overlap partially in sections.
15. Vorrichtung zum Scannen eines Kauorgans oder eines Bereich von diesem mittels mehrerer von einer Halterung (2) ausgehender Sensoren, 15. Device for scanning a chewing organ or a region thereof by means of a plurality of sensors emanating from a holder (2),
dadurch gekennzeichnet,  characterized,
dass in der die Sensoren aufweisenden Halterung (2) eine Elektronik zum Zusammenführen von mit den Sensoren ermittelten Daten sowie eine Spannungsquelle (4) integriert ist.  in that in the holder (2) having the sensors an electronic unit for merging data determined with the sensors and a voltage source (4) are integrated.
16. Vorrichtung nach Anspruch 15, 16. The device according to claim 15,
dadurch gekennzeichnet,  characterized,
dass die Sensoren derart an der Halterung (2) befestigt sind, dass gleichzeitig okklusaler, vestibulärer und platinaler/lingualer Bereich von zumindest einem Bereich des Kauorgans scanbar ist.  in that the sensors are fastened to the holder (2) in such a way that at the same time occlusal, vestibular and platinum / lingual region of at least one region of the chewing organ can be scanned.
17. Vorrichtung nach Anspruch 15 oder 16, 17. Device according to claim 15 or 16,
dadurch gekennzeichnet,  characterized,
dass der Sensor ein Sensor aus der Gruppe CCD-, CMOS-, InGaAs-, PbS-Sensor, Miniaturkamera im Submillimeterbereich ist.  that the sensor is a sensor from the group CCD, CMOS, InGaAs, PbS sensor, miniature camera in the sub-millimeter range.
18. Vorrichtung nach zumindest einem der Ansprüche 15 bis 17, 18. Device according to at least one of claims 15 to 17,
dadurch gekennzeichnet,  characterized,
dass die Halterung (2) ein Inertialsystem aufweist. the holder (2) has an inertial system.
19. Vorrichtung nach zumindest einem der Ansprüche 15 bis 18, 19. Device according to at least one of claims 15 to 18,
dadurch gekennzeichnet,  characterized,
dass die Halterung (2) eine dreidimensionale Geometrie zum zumindest bereichsweisen Umfassen eines Kieferbereichs aufweist.  the holder (2) has a three-dimensional geometry for at least partially enclosing a jaw region.
20. Vorrichtung nach zumindest einem der Ansprüche 15 bis 19, 20. Device according to at least one of claims 15 to 19,
dadurch gekennzeichnet,  characterized,
dass die Halterung (2) mit einer zumindest die Sensoren abdeckenden transparenten Umhüllenden versehen ist.  the holder (2) is provided with a transparent envelope covering at least the sensors.
EP10750096.9A 2009-08-26 2010-08-26 Method and arrangement for determining a combined data record for a masticatory organ to be measured Active EP2470857B1 (en)

Applications Claiming Priority (2)

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DE102009038588A DE102009038588A1 (en) 2009-08-26 2009-08-26 Method for determining a complete data record of an object to be measured
PCT/EP2010/062517 WO2011023784A2 (en) 2009-08-26 2010-08-26 Method and arrangement for determining a combined data record for a masticatory organ to be measured

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EP2470857A2 true EP2470857A2 (en) 2012-07-04
EP2470857B1 EP2470857B1 (en) 2018-05-02

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EP (1) EP2470857B1 (en)
DE (1) DE102009038588A1 (en)
WO (1) WO2011023784A2 (en)

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Also Published As

Publication number Publication date
WO2011023784A2 (en) 2011-03-03
US9453722B2 (en) 2016-09-27
DE102009038588A1 (en) 2011-03-24
WO2011023784A3 (en) 2011-04-21
EP2470857B1 (en) 2018-05-02
US20120224756A1 (en) 2012-09-06

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